Operating mechanism for car-windows.



W. H. & R. s. STIVER. OPERATING MECHANISM FOR GAR WINDOWS.

APPLIGATION FILED MAY 23, 1910.

Patented Mar. 11, 3.913.

w J M MT W km A 9 H M O N I, l H m J L w a MA A MM /Vsw7?/ 7% w Ham M1751? UNITED STATE WILLIAM HENRY STIVER AND ROSS SHOEMAKEB STIVER, D15 A'LTGONIK,

. PENNSYLVANIA.

OPERATING MECHANISM FOR CAB-WINDOlR S.

Specification of Letters Patent.

Eatentcd Ella r. it, ilfi fls.

Application filed May 28, 1910. Serial No. 563,981.

To all 207mm it'may concern.

Be it known that we, \Vnmnnt HENRY Srivnn and Ross Srronna-nnn SrivEn, citizens of the United States, residing at Altoona, in the county of Blair and State of Pennsylvania, have invented-certain new and usetul Improvements in Operating Mechanism for Car-Vindows, of which the following is a specification.

This invention relates to window operat ing devices, and more especially to an arrangement whereby the window is raised by air pressure preferably taken from the storage reservoir located on the car.

The object of the device is to provide a simple means of operating car windows by air pressure supplied from the brake system and controlled by a valve preferably located below the window sill and above thecar seats inside the car.

Another object of this invention is to provide means for admitting sufiicientair to balance the weight of the window at any fixed point or points and to provide means for exhausting air from the window operating pistons without affecting the fluid pressure supply.

With these and other objects in view, which will more readily appear as the nature of the invention is better understood, the invention consists in the novel combina tion and arrangement of parts as will be .lrereinafter pointed out, illustrated, and

laimed.

In the accompanying drawings, Figure l illustrates our invention applied to a car window. Fig. 2 illustrates a plan view of the valves used to control the operation of the window. Fig. 3 is a View partly in section of the valves shown in Fig. 2, and particularly shows the construction of the admission valve and valve seat.

Like references designate corresponding parts in the several figures of the drawings.

In'the drawings, the numeral 10 designates the car Window to which we have an tachcd the window operating device; To the window sash we attach suitable brackets 11 which are secured to the upper end of pneun'iatically controlled piston rods 12. To the lower end of each piston rod 12 is attached a piston 13 which reciprocates in a cylinder it. Each cylinder 14 is secured at its lower end to an elbow 15 to which is attached a pipe 16 leading to the raising of a controlling valve device. 'l'he lower end of the valve casing 17 is threaded to receive a pipe 18 which. we prefer to place in direct communication with the compressed air reservoir. (Not shown.)

the casing 17 an inlet valve 19, and an exh'aust valve. 20. The valves proper designated by the numeral 21 are made separate from the stem and held to the latter by screw 23. This construction facilitates the renewing of the valve for repair purposes. A spring 2-4 held inplace by a cap 24 exerts a pressure on the top face of each valve sufticientto keep the same seated against the reservoir pressure.

We prefer to construct the two valves as shown in Figs. 2 and 3 and to have the ex haust valve placed above the admission valve, as there would be less likelihood of injury from the window coming down, as the push button would preferably be located immediately below the window sill.

The operation of the device may be described as follows: The fluid pressure from the storage reservoir passe-s up through the pipe 18 to the admission valve 19, which is controlled by a push button 2'5 on the stem After passing this valve the pressure is exerted on the pistons 13 in the cylinders 14, which are preferably made of brass to prevent corrosion. lVith this pressure exerted on the pistons 13 the window will prove up and the admission valve is then closed. To lower the window, exhaust alve is opened and the rd" in the cylinder passes out and the window descends by gravity.

We claim:

1. In a window operating mechanism the combination with the window, olia pair (if cylinders. brackets carried by the window. pistons operating: in the cylinders and hairing rod connections with said brackets. and a 'alvc device for operating: said pistons; said valve device comprising a casing having separate inlet and exhaust passages com municatiiig with the cylinders, and normally closed and manually operated inlet and ex The valve device in its entirety consists of haust valves for each of said separate passa ges.

2. la window operating mechanism the cooil'iinanon with the window, of two cyl inders located one oiveach side of the won (low, brackets carried by the Window pistons operating in the cylinders and having rod connections with said brackets, and a valve device in communication with the cyllllllClS for operating said pistons, said valve device comprising a valve casing provided with an air inlet passage and a manually operated push-valve for opening and eloaing the said passage and a separate exhaust pas j sage also located within the casing and pro- 1 vided with a manually operated push-valve 1 for opening and closing the said exhaust V passage.

In tcstiinony whereof we hereunto atlix our signatures: in the PTO'SQYICQ of two Wit- 1-5 nesscs. I

\v'lllLLUsl HENRY STIVER. ROSS FillOE-HKAKER STIVE R.

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